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30485247591 = 397332931469
BaseRepresentation
bin11100011001000011…
…111111011001100111
32220200120101000221010
4130121003333121213
5444413210410331
622001004353303
72126311220601
oct343103773147
986616330833
1030485247591
1111a241447a7
125aa9545833
132b4aa83456
141692a80171
15bd652ae46
hex7190ff667

30485247591 has 16 divisors (see below), whose sum is σ = 41079679200. Its totient is φ = 20107296768.

The previous prime is 30485247553. The next prime is 30485247629. The reversal of 30485247591 is 19574258403.

It is an interprime number because it is at equal distance from previous prime (30485247553) and next prime (30485247629).

It is not a de Polignac number, because 30485247591 - 225 = 30451693159 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 30485247591.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30485247791) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 953005 + ... + 984473.

It is an arithmetic number, because the mean of its divisors is an integer number (2567479950).

Almost surely, 230485247591 is an apocalyptic number.

30485247591 is a deficient number, since it is larger than the sum of its proper divisors (10594431609).

30485247591 is a wasteful number, since it uses less digits than its factorization.

30485247591 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34898.

The product of its (nonzero) digits is 1209600, while the sum is 48.

The spelling of 30485247591 in words is "thirty billion, four hundred eighty-five million, two hundred forty-seven thousand, five hundred ninety-one".

Divisors: 1 3 97 291 3329 9987 31469 94407 322913 968739 3052493 9157479 104760301 314280903 10161749197 30485247591